Synchronization of paging and sleep cycles in wireless communication systems

An apparatus comprising:

• a paging module configured to provide paging parameters for a mobile station, wherein the paging parameters include i) a paging listening interval length Lp for each paging listening interval, ii) a paging cycle period Pp, and iii) a paging cycle offset Qp;
• and
• a sleep module configured to determine sleep parameters for the mobile station based on the paging parameters, wherein the sleep parameters include i) a wakeup interval length Ls for each wakeup interval, ii) a sleep cycle period Ps, and iii) a sleep cycle offset Qs,
• wherein the sleep module is further configured to determine the sleep parameters such that each paging listening interval overlaps one of the wakeup intervals,
• wherein the sleep module is further configured to determine the sleep parameters such that an end of each paging listening interval is aligned with an end of one of the wakeup intervals, and
• wherein the sleep module is further configured to determine the sleep parameters such that 0≦Qs=Qp+Lp−Ls+mPs<Ps, wherein m is a positive integer.

A method comprising:

• providing a plurality of paging parameters for a mobile station, wherein the plurality of paging parameters include i) a length of each of a plurality of paging listening intervals, and ii) a paging cycle offset;
• and
• determining each of a plurality of sleep parameters for the mobile station based on the plurality of paging parameters, wherein the plurality of sleep parameters include i) a length of each of a plurality of wakeup intervals, ii) a sleep cycle period, and iii) a sleep cycle offset;
• wherein the plurality of sleep parameters are determined such that each of the plurality of paging listening intervals is synchronized with and occurs during a respective one of the plurality of wakeup intervals;
• and
• determining the plurality of sleep parameters such that the sleep cycle offset is (i) greater than or equal to zero and (ii) equal to a sum of
• the paging cycle offset,
• the paging listening interval length,
• an inverse of the length of each of a plurality of wakeup intervals, and
• a product of (a) a positive integer, and (b) the sleep cycle period, and
• wherein the sum is less than the sleep cycle period.

A method comprising:

• providing paging parameters for a mobile station, wherein the paging parameters include i) a paging listening interval length Lp for each paging listening interval, ii) a paging cycle period Pp, and iii) a paging cycle offset Qp;
• determining sleep parameters for the mobile station based on the paging parameters, wherein the sleep parameters include i) a wakeup interval length Ls for each wakeup interval, ii) a sleep cycle period Ps, and iii) a sleep cycle offset Qs,
• wherein the sleep parameters are determined such that each paging listening interval overlaps one of the wakeup intervals;
• determining the sleep parameters such that an end of each paging listening interval is aligned with an end of one of the wakeup intervals;
• and
• determining the sleep parameters such that 0≦Qs=Qp+Lp−Ls+mPs<Ps, wherein m is a positive integer.

A non-transitory computer-readable medium storing instructions executable by a computer, wherein the instructions comprise:

• providing paging parameters for a mobile station, wherein the paging parameters include i) a length of each of a plurality of paging listening intervals, and ii) a paging cycle offset;
• and
• determining each of a plurality of sleep parameters for the mobile station based on the paging parameters, wherein the plurality of sleep parameters include i) a length of each of a plurality of wakeup intervals, ii) a sleep cycle period, and iii) a sleep cycle offset,
• wherein the plurality of sleep parameters are determined such that each of the plurality of paging listening intervals is synchronized with and occurs during a respective one of the plurality of wakeup intervals;
• and
• determining the plurality of sleep parameters such that the sleep cycle offset is (i) greater than or equal to zero and (ii) equal to a sum of
• the paging cycle offset,
• the paging listening interval length,
• an inverse of the length of each of a plurality of wakeup intervals, and
• a product of (a) a positive integer, and (b) the sleep cycle period, and
• wherein the sum is less than the sleep cycle period.